Surname Hejnar (Hejnar 
) , around the globe, is a rare last name. The surname Hejnar is habitual in Poland, where it is a rare surname, Czechia, and Canada, where it is a very rare surname. Measured by absolute frequency, this name is the most popular in Poland, the United States, and Czechia. Also, Hejnar is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Hejnar | Canada, France, Czechia, Poland, United States |
| jiří hejnar researcher (b. 1962) |
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| petr hejnar (b. 1966) |
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| robert hejnar CZ (b. 1969) |
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| matthias hejnar French actor, FR (b. 1990) |
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